#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/uio.h>

#define FIFO "/tmp/myfifo"

int main(int argc, char **argv) {
	char buf_r[100];
	int fd;
	int nread;

	if((mkfifo(FIFO, O_CREAT | O_EXCL) < 0) && (errno != EEXIST)) {
		printf("cannot create fifo server\n");
	}
	printf("Preparing for reading bytes...\n");

	memset(buf_r, 0, sizeof(buf_r));
	fd = open(FIFO, O_RDONLY | O_NONBLOCK, 0);
	if(fd == -1) {
		perror("open");
		exit(1);
	}
	while(1) {
		memset(buf_r, 0, sizeof(buf_r));
		if((nread = read(fd, buf_r, 100)) == -1) {
			if(errno == EAGAIN) {
				printf("no data yet\n");
			}
		}
		printf("read %s from FIFO\n", buf_r);
		sleep(1);
	}
	pause();
	unlink(FIFO);

	exit(0);
}
